Comment 2 for bug 1230221

StacktraceTop:
 on_sign_in_button_clicked (button=0x92abc18, user_data=0x9032450) at cc-online-accounts-panel.c:421
 g_cclosure_marshal_VOID__VOIDv (closure=0x91f5960, return_value=0x0, instance=0x92abc18, args=0xbfa818cc ",.>\264\a:\213\264", marshal_data=0x0, n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.37.93/./gobject/gmarshal.c:115
 _g_closure_invoke_va (closure=closure@entry=0x91f5960, return_value=return_value@entry=0x0, instance=instance@entry=0x92abc18, args=args@entry=0xbfa818cc ",.>\264\a:\213\264", n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.37.93/./gobject/gclosure.c:840
 g_signal_emit_valist (instance=instance@entry=0x92abc18, signal_id=signal_id@entry=177, detail=detail@entry=0, var_args=var_args@entry=0xbfa818cc ",.>\264\a:\213\264") at /build/buildd/glib2.0-2.37.93/./gobject/gsignal.c:3238
 g_signal_emit (instance=instance@entry=0x92abc18, signal_id=177, detail=detail@entry=0) at /build/buildd/glib2.0-2.37.93/./gobject/gsignal.c:3386